BOGIES AND SUSPENSION - South Central Railway
BOGIES AND SUSPENSION - South Central Railway
BOGIES AND SUSPENSION - South Central Railway
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CHAPTER 6 – <strong>BOGIES</strong> <strong>AND</strong> <strong>SUSPENSION</strong><br />
B 1<br />
b) AXLE GUARD REPAIR<br />
WAGON MAINTENANCE MANUAL<br />
3mm.MAX<br />
AXLE GUARD<br />
PERPENDICULARITY OF<br />
GUARD FACE<br />
A1<br />
C1<br />
A2<br />
AXLE GUARD<br />
FIG. 6.6 SQARENESS OF GUARD<br />
Page 67 of 121<br />
Axle guard should be checked for cracks, mis-alignment and slack rivets. In<br />
service, the rivet holes of the sole bars and axle guards get elongated, resulting in<br />
slack rivets and mis-alignment. Where necessary, the hole must be built up and<br />
should drilled to correct size ensuring proper alignment.<br />
For repairing the cracked axle guards, following methods have been laid down:-<br />
c2<br />
Oxyacetylene welding - on leg type of axle guards only.<br />
By patching only - on leg type axle guards only.<br />
Electric Welding by grafting a new piece preferably flash butt welding - only<br />
on leg type axle guards.<br />
Electric welding only - on leg type axle guards and upto 25 mm length of<br />
crack on pressed steel axle guards.<br />
Electric welding with patch - only on pressed steel axle guards having cracks<br />
more than 25 mm and up to half width of the section. If crack length is more<br />
than half, the width of the section on pressed steel axle guards, it should be<br />
scrapped.<br />
B 2<br />
3mm.MAX 3mm.MAX<br />
PERPENDICULARITY OF<br />
SIDE FACE
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